Skype for Business Microphone Issues in MacOS Catalina 10.15

There are known microphone issues for Skype for Business running on macOS Catalina (version 10.15).

To check the macOS version, choose About This Mac from the Apple menu.

They can't see you or hear you. Skype for Business may not have permission to use the camera or microphone.

1. Restart the Mac.
2. Go to the Apple menu then click on System Preferences.
3. Open "Security & Privacy" and click on the Privacy.
   • Fix #1. Click on "Microphone" and find Skype for Business on the list. If Skype for Business is not on the list, go to Fix #2.
     1. Check the box next to Skype for Business. If it is already checked, then uncheck it and recheck the box.
        Note: You might need to unlock the padlock and confirm the change.
     2. Restart computer by clicking the Apple menu and clicking Restart
   • Fix #2. If Skype for Business is not listed under "Microphone", go to "Camera" and find Skype for Business on the list. If Skype for Business is not on the list, go to Fix #3.
     1. Uncheck the box next to Skype for Business. If it is already checked, then uncheck it.
        Note: You might need to unlock the padlock and confirm the change.
     2. Restart the computer by clicking the Apple menu and clicking Restart.
     3. Open Skype for Business. Skype will ask for permission to use the camera and the microphone. Click Allow.
   • Fix #3. Uninstall Skype for Business and install the previous version of Skype for Business.
     1. Go to Finder > Application and drag "Skype for Business" from the list of applications to the Trash
     2. Download Skype installer package to your computer
     3. Restart the computer by clicking the Apple menu and clicking Restart
     4. Find the Skype for Business Installer Package (called SkypeforBusinessInstaller-16-28-0-142.pkg) and double click to install Skype for Business. Read Installing Skype for Business on a Mac for more help in installing the app
     5. Restart the computer again by clicking the Apple menu and clicking Restart
     6. Open Skype for Business.